| Paper Abstract and Keywords |
| Presentation |
2015-09-11 09:55
Analysis of Watermarking into CELP Speech Codec Based on Formant Tuning
Erick Christian Garcia Alvarez, Shengbei Wang, Masashi Unoki (JAIST) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
Unifying the watermarking method into the code-excited linear prediction (CELP) can enable the CELP to automatically provide protection of the encoded speech. In our previous work, a formant tuning method has been proposed. We have evaluated this watermarking method with respect to inaudibility and robustness. The results showed that the proposed watermarking method could satisfy inaudibility. However, when subjected to CELP, watermarks could not be correctly detected since the encoding and decoding process in CELP has destroyed the embedded watermarks. To increase the robustness of proposed method against CELP, in this work, we directly implement the formant tuning method into CELP. The Log-spectrum distortion (LSD), perceptual evaluation of speech quality(PESQ), and the bit detection rate (BDR) were used to evaluated inaudibility and robustness on the proposed method. The results revealed that the proposed method could satisfy inaudibility and the robustness was increased. These results also suggested that the CELP could automatically protect of the encoded speech with watermarking embedded. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
CELP codec / speech watermarking / formant tunning / inaudibility / robustness / / / |
| Reference Info. |
ITE Tech. Rep. |
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| Download PDF |
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| Conference Information |
| Committee |
ME IEICE-LOIS IEICE-IE IEICE-EMM IEE-CMN |
| Conference Date |
2015-09-10 - 2015-09-11 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
Nagoya University, Higashiyama Campus |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
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| Paper Information |
| Registration To |
IEICE-EMM |
| Conference Code |
2015-09-LOIS-IE-EMM-CMN-ME |
| Language |
English |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
Analysis of Watermarking into CELP Speech Codec Based on Formant Tuning |
| Sub Title (in English) |
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| Keyword(1) |
CELP codec |
| Keyword(2) |
speech watermarking |
| Keyword(3) |
formant tunning |
| Keyword(4) |
inaudibility |
| Keyword(5) |
robustness |
| Keyword(6) |
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| 1st Author's Name |
Erick Christian Garcia Alvarez |
| 1st Author's Affiliation |
Japan Advanced Institute of Science and Technology (JAIST) |
| 2nd Author's Name |
Shengbei Wang |
| 2nd Author's Affiliation |
Japan Advanced Institute of Science and Technology (JAIST) |
| 3rd Author's Name |
Masashi Unoki |
| 3rd Author's Affiliation |
Japan Advanced Institute of Science and Technology (JAIST) |
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Author-1 |
| Date Time |
2015-09-11 09:55:00 |
| Presentation Time |
25 minutes |
| Registration for |
IEICE-EMM |
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| Volume (vol) |
vol.39 |
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